$\frac{1E-3(\mathrm{I\_app}+-\mathrm{I\_leak}-\mathrm{I\_Na}-\mathrm{I\_KD}-\mathrm{I\_KM}-\mathrm{I\_CaL}-\mathrm{I\_h})}{\mathrm{C\_m}}$ $\begin{cases}\mathrm{i\_stimAmplitude} & \text{if $(\mathrm{tau}\ge \mathrm{i\_stimStart})\land (\mathrm{tau}\le \mathrm{i\_stimEnd})$}\\ 0 & \text{otherwise}\end{cases}$ $\mathrm{time\_}-\mathrm{period}\lfloor \frac{\mathrm{time\_}}{\mathrm{period}}\rfloor$ $1000\mathrm{g\_leak}(V-\mathrm{E\_leak})$ $\frac{\mathrm{m\_inf}-m}{\mathrm{tau\_m}}$ $\begin{cases}0.32\times 4(1-\frac{13+\mathrm{V\_T}-V}{2\times 4}) & \text{if $\left|\frac{13+\mathrm{V\_T}-V}{4}\right|< 1E-6$}\\ \frac{0.32(13+\mathrm{V\_T}-V)}{e^{\frac{13+\mathrm{V\_T}-V}{4}}-1} & \text{otherwise}\end{cases}$ $\begin{cases}-0.28\times 5(1-\frac{-(V-\mathrm{V\_T}-40)}{2\times 5}) & \text{if $\left|\frac{-(V-\mathrm{V\_T}-40)}{5}\right|< 1E-6$}\\ \frac{-0.28(V-\mathrm{V\_T}-40)}{e^{\frac{-(V-\mathrm{V\_T}-40)}{5}}-1} & \text{otherwise}\end{cases}$ $\frac{1}{\mathrm{alpha}+\mathrm{beta}}$ $\frac{\mathrm{alpha}}{\mathrm{alpha}+\mathrm{beta}}$ $\frac{\mathrm{h\_inf}-h}{\mathrm{tau\_h}}$ $0.128e^{\frac{17+\mathrm{V\_T}+\mathrm{V\_S}-V}{18}}$ $\frac{4}{1+e^{\frac{40+\mathrm{V\_S}+\mathrm{V\_T}-V}{5}}}$ $\frac{\mathrm{alpha\_h}}{\mathrm{alpha\_h}+\mathrm{beta\_h}}$ $\frac{1}{\mathrm{alpha\_h}+\mathrm{beta\_h}}$ $1000\mathrm{g\_Na}m^{3}h(V-\mathrm{E\_Na})$ $\frac{\mathrm{n\_inf}-n}{\mathrm{tau\_n}}$ $\begin{cases}-0.032\times 5(1-\frac{V-\mathrm{V\_T}-15}{2\times 5}) & \text{if $\left|\frac{V-\mathrm{V\_T}-15}{5}\right|< 1E-6$}\\ \frac{-0.032(V-\mathrm{V\_T}-15)}{e^{\frac{V-\mathrm{V\_T}-15}{5}}-1} & \text{otherwise}\end{cases}$ $\begin{cases}0.5\times 40(1+\frac{V-\mathrm{V\_T}-10}{2\times 40}) & \text{if $\left|\frac{-(V-\mathrm{V\_T}-10)}{40}\right|< 1E-6$}\\ \frac{0.5-(V-\mathrm{V\_T}-10)}{e^{\frac{-(V-\mathrm{V\_T}-10)}{40}}-1} & \text{otherwise}\end{cases}$ $\frac{1}{\mathrm{alpha\_n}+\mathrm{beta\_n}}$ $\frac{\mathrm{alpha\_n}}{\mathrm{alpha\_n}+\mathrm{beta\_n}}$ $1000\mathrm{g\_KD}n^4(V-\mathrm{E\_K})$ $\frac{\mathrm{p\_inf}-p}{\mathrm{tau\_p}}$ $\begin{cases}\frac{1}{1+e^{\frac{-(V+35)}{10}}} & \text{if $(\frac{-(V+35)}{10}< 25)\land (\frac{-(V+35)}{10}> -25)$}\\ 1 & \text{otherwise}\end{cases}$ $\begin{cases}\frac{\mathrm{tau\_max}}{3.3e^{\frac{V+35}{20}}+e^{\frac{-(V+35)}{20}}} & \text{if $(\frac{V+35}{20}< 25)\land (\frac{V+35}{20}> -25)$}\\ 1 & \text{otherwise}\end{cases}$ $1000\mathrm{g\_KM}p(V-\mathrm{E\_K})$ $\frac{\mathrm{q\_inf}-q}{\mathrm{tau\_q}}$ $\frac{6.32}{1+e^{\frac{-(V-5)}{13.89}}}$ $\begin{cases}0.02(5.36+\frac{1.31-V}{2}) & \text{if $\left|\frac{1.31-V}{5.36}\right|< 1E-6$}\\ \frac{0.02(1.31-V)}{1-e^{\frac{V-1.31}{5.36}}} & \text{otherwise}\end{cases}$ $\frac{1}{\mathrm{alpha\_q}+\mathrm{beta\_q}}$ $\frac{1}{1+e^{\frac{V+10}{-10}}}$ $1000\mathrm{P\_Ca}q^{2}G$ $\begin{cases}\frac{\mathrm{Ca\_inf}-\mathrm{Ca\_i}}{\mathrm{tau\_r}} & \text{if $\mathrm{drive\_channel}\le 0$}\\ \mathrm{drive\_channel}+\frac{\mathrm{Ca\_inf}-\mathrm{Ca\_i}}{\mathrm{tau\_r}} & \text{otherwise}\end{cases}$ $\frac{k\mathrm{I\_CaL}}{2Fd}$ $\frac{\frac{Z^{2}F^2\times 1E-3V}{RT}\times 1E-6(\mathrm{Ca\_i}-\mathrm{Ca\_o}e^{\frac{ZF\times 1E-3V}{RT}})}{1-e^{\frac{1E-3ZFV}{RT}}}$ $\frac{\mathrm{p\_1}\mathrm{k\_2}}{\mathrm{k\_1Ca}}$ $\frac{\mathrm{beta}}{\mathrm{alpha}}\mathrm{o\_1}$ $\frac{\mathrm{k\_4}}{\mathrm{k\_3p}}\mathrm{o\_2}$ $\frac{1}{1+e^{\frac{V+75-\mathrm{V\_S}}{5.5}}}$ $\mathrm{tau\_m}+\frac{1000}{e^{\frac{V+71.55-\mathrm{V\_S}}{14.2}}+e^{\frac{-(V+89-\mathrm{V\_S})}{11.6}}}$ $\frac{\mathrm{h\_inf}}{\mathrm{tau\_s}}$ $\frac{1-\mathrm{h\_inf}}{\mathrm{tau\_s}}$ $\mathrm{k\_2}\left(\frac{\mathrm{Ca\_i}}{\mathrm{Ca\_c}}\right)^{\mathrm{n\_Ca}}$ $\mathrm{k\_4}\left(\frac{\mathrm{p\_1}}{\mathrm{p\_C}}\right)^{\mathrm{n\_exp}}$ $1000\mathrm{g\_hbar}m(V-\mathrm{E\_h})$ $\mathrm{o\_1}+\mathrm{g\_inc}+\mathrm{o\_2}$